Routing Table Report 00:00 GMT Fri 19 Sep, 2008
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 274949
Prefixes after maximum aggregation: 131297
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 130757
Total ASes present in the Internet Routing Table: 29306
Prefixes per ASN: 9.38
Origin-only ASes present in the Internet Routing Table: 25408
Origin ASes announcing only one prefix: 12368
Transit ASes present in the Internet Routing Table: 3898
Transit-only ASes present in the Internet Routing Table: 93
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 27
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 569
Unregistered ASNs in the Routing Table: 217
Number of 32-bit ASNs allocated by the RIRs: 60
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 777
Number of addresses announced to Internet: 1938604214
Equivalent to 115 /8s, 140 /16s and 192 /24s
Percentage of available address space announced: 52.3
Percentage of allocated address space announced: 63.5
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.6
Total number of prefixes smaller than registry allocations: 135844
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 65033
Total APNIC prefixes after maximum aggregation: 22812
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 62043
Unique aggregates announced from the APNIC address blocks: 26195
APNIC Region origin ASes present in the Internet Routing Table: 3391
APNIC Prefixes per ASN: 18.30
APNIC Region origin ASes announcing only one prefix: 916
APNIC Region transit ASes present in the Internet Routing Table: 538
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 376472480
Equivalent to 22 /8s, 112 /16s and 131 /24s
Percentage of available APNIC address space announced: 80.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 112/8, 113/8, 114/8,
115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8,
122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8,
210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 122592
Total ARIN prefixes after maximum aggregation: 66060
ARIN Deaggregation factor: 1.86
Prefixes being announced from the ARIN address blocks: 90801
Unique aggregates announced from the ARIN address blocks: 35210
ARIN Region origin ASes present in the Internet Routing Table: 12451
ARIN Prefixes per ASN: 7.29
ARIN Region origin ASes announcing only one prefix: 4793
ARIN Region transit ASes present in the Internet Routing Table: 1234
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 364647297
Equivalent to 21 /8s, 188 /16s and 19 /24s
Percentage of available ARIN address space announced: 74.9
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 59172
Total RIPE prefixes after maximum aggregation: 35332
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 54775
Unique aggregates announced from the RIPE address blocks: 35754
RIPE Region origin ASes present in the Internet Routing Table: 11909
RIPE Prefixes per ASN: 4.60
RIPE Region origin ASes announcing only one prefix: 6253
RIPE Region transit ASes present in the Internet Routing Table: 1838
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 372277888
Equivalent to 22 /8s, 48 /16s and 130 /24s
Percentage of available RIPE address space announced: 85.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-49151
RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 23538
Total LACNIC prefixes after maximum aggregation: 5356
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 21728
Unique aggregates announced from the LACNIC address blocks: 11069
LACNIC Region origin ASes present in the Internet Routing Table: 999
LACNIC Prefixes per ASN: 21.75
LACNIC Region origin ASes announcing only one prefix: 322
LACNIC Region transit ASes present in the Internet Routing Table: 171
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 56710414
Equivalent to 3 /8s, 97 /16s and 85 /24s
Percentage of available LACNIC address space announced: 56.3
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 4046
Total AfriNIC prefixes after maximum aggregation: 1274
AfriNIC Deaggregation factor: 3.18
Prefixes being announced from the AfriNIC address blocks: 4352
Unique aggregates announced from the AfriNIC address blocks: 2037
AfriNIC Region origin ASes present in the Internet Routing Table: 260
AfriNIC Prefixes per ASN: 16.74
AfriNIC Region origin ASes announcing only one prefix: 84
AfriNIC Region transit ASes present in the Internet Routing Table: 52
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12316160
Equivalent to 0 /8s, 187 /16s and 238 /24s
Percentage of available AfriNIC address space announced: 36.7
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4538 3338 3214 44 China Education and Research
4755 1724 578 91 Videsh Sanchar Nigam Ltd. Aut
17488 1385 94 101 Hathway IP Over Cable Interne
9583 1119 86 478 Sify Limited
4134 856 13651 345 CHINANET-BACKBONE
4766 844 6407 360 Korea Telecom (KIX)
23577 823 33 728 Korea Telecom (ATM-MPLS)
18101 766 152 51 Reliance Infocom Ltd Internet
4780 720 353 61 Digital United Inc.
9498 679 291 55 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4290 3416 339 bellsouth.net, inc.
6298 1980 316 736 Cox Communicatons
20115 1688 1424 712 Charter Communications
1785 1655 710 156 AppliedTheory Corporation
2386 1549 677 899 AT&T Data Communications Serv
4323 1516 1065 368 Time Warner Telecom
7018 1396 9905 978 AT&T WorldNet Services
1803 1305 9 1031 SPRINT
11492 1217 152 11 Cable One
6478 1169 241 185 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 422 1777 377 TDC Tele Danmark
3301 332 1444 303 TeliaNet Sweden
30890 329 87 175 SC Kappa Invexim SRL
3215 327 2756 106 France Telecom Transpac
5462 325 794 27 Telewest Broadband
3320 324 7063 273 Deutsche Telekom AG
8866 318 77 21 Bulgarian Telecommunication C
8452 316 188 11 TEDATA
35228 290 84 5 Avatar Broadband Limited
8551 286 270 37 Bezeq International
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1718 2828 218 UniNet S.A. de C.V.
7303 1714 241 71 Telecom Argentina Stet-France
11830 668 299 9 Instituto Costarricense de El
22047 564 270 14 VTR PUNTO NET S.A.
10620 429 105 60 TVCABLE BOGOTA
16814 426 27 10 NSS, S.A.
6471 420 85 48 ENTEL CHILE S.A.
16735 413 92 10 Companhia de Telecomunicacoes
11172 407 118 72 Servicios Alestra S.A de C.V
7738 373 730 27 Telecomunicacoes da Bahia S.A
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 516 67 32 LINKdotNET AS number
20858 403 34 3 EgyNet
3741 264 855 223 The Internet Solution
2018 231 215 139 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 137 10 13 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
5713 118 555 68 Telkom SA Ltd
29571 107 13 8 Ci Telecom Autonomous system
33776 97 6 3 Starcomms Nigeria Limited
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4290 3416 339 bellsouth.net, inc.
4538 3338 3214 44 China Education and Research
6298 1980 316 736 Cox Communicatons
4755 1724 578 91 Videsh Sanchar Nigam Ltd. Aut
8151 1718 2828 218 UniNet S.A. de C.V.
7303 1714 241 71 Telecom Argentina Stet-France
20115 1688 1424 712 Charter Communications
1785 1655 710 156 AppliedTheory Corporation
2386 1549 677 899 AT&T Data Communications Serv
4323 1516 1065 368 Time Warner Telecom
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3338 3294 China Education and Research
7303 1714 1643 Telecom Argentina Stet-France
4755 1724 1633 Videsh Sanchar Nigam Ltd. Aut
8151 1718 1500 UniNet S.A. de C.V.
1785 1655 1499 AppliedTheory Corporation
17488 1385 1284 Hathway IP Over Cable Interne
6298 1980 1244 Cox Communicatons
11492 1217 1206 Cable One
4323 1516 1148 Time Warner Telecom
18566 1049 1039 Covad Communications
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.31.25.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.246.47/32 286 KPNQwest Backbone AS
10.29.246.48/32 286 KPNQwest Backbone AS
10.29.246.49/32 286 KPNQwest Backbone AS
10.29.248.65/32 286 KPNQwest Backbone AS
10.29.248.71/32 286 KPNQwest Backbone AS
192.168.192.0/21 7497 Computer Network Information
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.75.116.0/22 10796 ServiceCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.71.0/24 701 UUNET Technologies, Inc.
63.143.115.0/24 701 UUNET Technologies, Inc.
Complete listing at http://thyme.apnic.net/rviews/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:9 /10:17 /11:46 /12:148
/13:298 /14:533 /15:1082 /16:10165 /17:4426 /18:7764
/19:16274 /20:19387 /21:18736 /22:24133 /23:24906 /24:143735
/25:617 /26:702 /27:373 /28:759 /29:381 /30:219
/31:0 /32:219
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2844 4290 bellsouth.net, inc.
6298 1955 1980 Cox Communicatons
4538 1764 3338 China Education and Research
1803 1282 1305 SPRINT
7303 1242 1714 Telecom Argentina Stet-France
2386 1230 1549 AT&T Data Communications Serv
11492 1193 1217 Cable One
17488 1192 1385 Hathway IP Over Cable Interne
1785 1124 1655 AppliedTheory Corporation
6478 1062 1169 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:141 12:2157 13:2 15:20 16:3
17:5 18:13 20:35 24:1083 32:197 38:495
40:92 41:695 43:1 44:2 47:12 52:3
55:3 56:3 57:48 58:560 59:591 60:451
61:984 62:1307 63:1966 64:3229 65:2370 66:3501
67:1236 68:780 69:2312 70:847 71:170 72:2026
73:7 74:1182 75:170 76:277 77:796 78:832
79:260 80:955 81:850 82:610 83:377 84:579
85:1019 86:399 87:729 88:338 89:1351 90:21
91:1507 92:254 93:878 94:147 96:65 97:80
98:322 99:8 114:100 115:54 116:1005 117:378
118:235 119:498 120:89 121:612 122:855 123:449
124:855 125:1245 128:357 129:204 130:134 131:411
132:70 133:9 134:178 135:32 136:223 137:95
138:142 139:101 140:507 141:102 142:408 143:303
144:325 145:51 146:370 147:157 148:517 149:297
150:127 151:181 152:149 153:143 154:10 155:280
156:175 157:301 158:169 159:300 160:275 161:138
162:256 163:149 164:516 165:503 166:383 167:331
168:631 169:143 170:473 171:33 172:10 173:33
186:1 187:10 188:1 189:646 190:2466 192:5760
193:4251 194:3357 195:2650 196:991 198:3745 199:3315
200:5938 201:1658 202:8273 203:8079 204:3938 205:2144
206:2364 207:2688 208:3602 209:3393 210:2992 211:1251
212:1471 213:1668 214:178 215:50 216:4336 217:1226
218:403 219:525 220:1067 221:416 222:444
End of report